Method for data backup, device and system

Active Publication Date: 2013-04-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0017]As can be seen from the above technical solutions, in the embodiment of the present invention, the data in all the VMs of one data center can be backed up simultaneously, and the associations between the VMs are also backed up during the backup, so it is unnecessary to concern the re

Problems solved by technology

But the backups are just limited to respective VMs, while the associations between the VMs cannot be backed up.
During the research and practice of the prior art, the inventor finds that in the current implementation, when the VMs of the data center are directly associated with each other, and their ru

Method used

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  • Method for data backup, device and system
  • Method for data backup, device and system

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Embodiment Construction

[0025]In order that a person skilled in the art can better understand the solutions of the embodiments of the present invention, the embodiments of the present invention are further described in details with reference to the drawings and examples.

[0026]In order to facilitate the understanding by a person skilled in the art, the virtualized data center will be briefly introduced before the present invention.

[0027]The virtualized data center is usually composed of at least two computation nodes, at each of which a hypervisor (called as hypervisor node in the present invention) runs. The hypervisor abstracts and reorganizes the physical memory, the processor and the I / O resource of the computation nodes in the data center, and create a plurality of virtual machines. Thus the hypervisor may be regarded as a resource ownership conversion module. In the virtualized data center, only the hypervisor can access all the computation node physical resources.

[0028]Please refer to FIG. 1, which i...

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Abstract

A method for backing up data in a data center, device and system are provided. The data in all the VMs of one data center can be backed up simultaneously, and the associations between the VMs are also backed up during the backup, so it is unnecessary to concern the recovery orders of the VMs when the data of the data center is recovered. Meanwhile, when the stored data is exported from the hypervisor node, it is unnecessary to notify the upper layer OS for a backup, thereby improving the data backup efficiency and reducing the system logical complexity.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of International Patent Application No. PCT / CN2011 / 077945, filed on Aug. 3, 2011, which is hereby incorporated by reference in its entireties.FIELD OF THE INVENTION[0002]The present invention relates to the field of IT, and particularly to a method for data backup of a data center.BACKGROUND OF THE INVENTION[0003]With the development of the communication technology, more and more data centers employ the virtualization technology, which abstracts and then rearranges the computer system hardware, and a virtualization software layer runs between the computer hardware platform and the Operation System (OS). The virtualization software layer is generally called as hypervisor and capable of running multiple OSs on a plurality of computer hardware platforms.[0004]A data center employing the virtualization technology no longer runs a single operation system, thus the backup and deployment for the data center gra...

Claims

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Application Information

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IPC IPC(8): G06F12/16
CPCG06F11/1456G06F11/1458G06F9/45558G06F12/16G06F11/1484
Inventor YU, ZHOUWANG, SHAOYONG
Owner HUAWEI TECH CO LTD
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